AnswersTX-Integrated Physics and ChemistryLab: Ionic and Covalent Bonds

Changes in Matter Answers

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1
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Which of these is an example of investigating an intensive property?

A
weighing sand in a bag
B
measuring the length of wire
C
determining if a rock is magnetic
D
recording the volume of water in a cylinder
2
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Which is an example of a chemical change?

A
water evaporating from a puddle
B
cloth tearing when pulled
C
wood forming sawdust when cut
D
bread baking in an oven
4

Which statement describes a physical property of copper?

A
It reacts with strong acids.
B
It can be reshaped by a force.
C
It ignites at high temperatures.
D
It can combine with oxygen.
5

Which procedure could a student use to examine an intensive property of a rectangular block of wood?

A
Find the mass.
B
Record the length.
C
Measure the volume.
D
Determine the density.
6

A student investigated some properties of lead and recorded the findings in the table below.PropertyObservationcolordull graydensity11.3 g/cm3volume of sample3.00 cm3melting point327°Creaction with airlead oxide forms on the surfaceelectrical conductivityconducts some electricityWhich statement is true with respect to the investigation?

A
The student investigated only the physical properties of lead.
B
The student investigated only the chemical properties of lead.
C
The student investigated more physical properties than chemical properties of lead.
D
The student investigated more chemical properties than physical properties of lead.
8

Which of these is an example of a physical change?

A
a banana ripening in the air
B
hydrogen burning in the air
C
zinc reacting with an acid
D
liquid water turning into vapor
10

Which list includes only physical properties?

A
density, reactivity, and conductivity
B
boiling point, conductivity, and color
C
color, odor, and flammability
D
flammability, reactivity, and ductility

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Changes in Matter Answers — TX-Integrated…